Re: qconf: reproducible segfault

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On 1/5/07, Cyrill V. Gorcunov <[email protected]> wrote:
On Friday 05 January 2007 00:16, you wrote:
|  On 1/4/07, Cyrill V. Gorcunov <[email protected]> wrote:
|  > Hi,
|  > there is SIGSEGV happens in qconf.cc:995
|  >
|  >         str += print_filter(sym->name);
|  >
|  > but sym points to 0x1. To reproduce the error just do:
|  >
|  > 1) make xconfig (with Options->Show Debug Info unchecked)
|  > 2) go to Networking->Networking Options->Network packet filtering framework (Netfilter)->
|  >    Network packet filtering framework (Netfilter) and the line "<| .." must be selected
|  >    then just turn on Options->Show Debug info menu and you'll get:
|  >
|  >         make[1]: *** [xconfig] Segmentation fault
|  >         make: *** [xconfig] Error 2
|
|  Cyrill, Randy - I feel like an idiot but I can't really reproduce this :(
|
|  I'm trimming lkml from the CC list to upload and attach two screenshots
|   where I enabled Show Debug Info at what I guess are the two possible
|   interpretations of where the Select highlight should be - and neither
|   cause a core dump for me.
|
|  What am I mistaking ?
|
|  Thanks, ciao,

Hi Alessandro,

see enveloped scrshot to keep in mind how the qconf is looking at moment we
get SYGSEGV error - you just need to set Options->Show Debug and oops ;)
I don't know may be QT dev version does handling such exceptions itself and if
SYGSEVG happens it just ignore it... But the qconf really have the error :(.

That's ok, apparently FC6's qt-devel-3.3.7 libs are capable of
handling the problem (I can bring qconf to the exact screen
you showed, Options->Show Debug Info does _not_ crash).

And of course it's better to fix the problem in qconf.cc rather
than letting qt libs handle it :)

Thanks,

--alessandro

"but I thought that I should let you know
 the things that I don't always show
 might not be worth the time it took"

    (Steve Wynn, 'If My Life Was An Open Book')
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